Northern white-cheeked gibbons have specialized wrist joints and powerful arm muscles, which allow them to swing from tree branches, like the male pictured above in Pu Mat.

北部白颊长臂猿特殊的腕关节和强壮的上肢肌肉，可以让它们在树枝间荡来荡去，就如这张摄于菩玛公园的照片中显示的一样。

youdao

The technology of third party logistics has become the powerful arm of the enterprises to lower the cost and raise the competitiveness.

第三方物流技术成为企业降低生产成本、增强市场竞争力的有力武器。

youdao

The great creator raised his sinuous, powerful, flexible arm, and we know where we stand.

伟大的造物主抬起了他弯曲的，有力的，灵活的手臂，我们知道了我们的立场。

耶鲁公开课 - 文学理论导论课程节选

And sports business experts think that to extend its powerful arm overseas, the league may soon be ready to ramp up its initiatives in those markets, from individual player agreements and overseas TV deals to the implanting of MLB franchises.

FORBES: Major League Baseball Goes Global

Rather, the injury stems from the natural breakdown of a relatively small pitcher (6 feet, 210 pounds) saddled with lots of mileage on his powerful left arm.

WSJ: Mets Ace Santana Likely Out For Season

An additional and powerful shot in the arm would be to make permanent--and, indeed, deepen--the tax cuts on dividends and interest that expire in 2010.

FORBES: It's the Dollar, Stupid (and Taxes, Too)